AT ditches 2

Another type of Anti tank ditch

Disadvantage of this AT ditch is that this is obstacle for both teams. However the team on which side it is located as an element of defense, must to protect it.

Some example where to place AT ditches...

I borrowed the map from different game because it better fits my needs.

Another possibility if we would have map with two town like this:

So every team has a town to defend. It has some ditches near river close to town and more far from the town. Enemy can go around or direct approach via the ditches. But the trick is that you need to defend and attack in same time to capture town.

I could not found any image of air battles in good details to illustrate on air battles map. But that is the same thing.